test_example.c

/*
	RLE ZOO single-header library example.
	Copyright (c) 2022, Eddy L O Jansson. Licensed under The MIT License.

	See https://github.com/eloj/rle-zoo
*/
#include <stdio.h>
#include <stdint.h>
#include <sys/types.h>

#define RLE_ZOO_PACKBITS_IMPLEMENTATION
#include "rle_packbits.h"

int main(void) {
	const uint8_t input[] = "ABBCCCDDDDEEEEE";
	size_t len = sizeof(input) - 1;

	// Call with NULL for dest buffer to calculate output size.
	// ssize_t compressed_size = packbits_compress(input, len, NULL, 0);

	uint8_t dest[256];
	ssize_t res = packbits_compress(input, len, dest, sizeof(dest));
	if (res > 0) {
		printf("Compressed '%s' (%zu bytes) into %zd bytes: ", input, len, res);

		// Do something with the output.
		for (int i = 0 ; i < res ; ++i) {
			printf("%02X ", dest[i]);
		}
		printf("\n");
	} else {
		printf("Compression error: %zd\n", res);
	}
	return 0;
}